Plaiting and braiding machine



July 1 ,1924. 1,499,732

C. HAUSBERG PLAITING AND BRAIDING MACHINE Filed Sept. 9, 1922 4 Sheets$heet 1 B II n" I 37 Inventor CELI'Z Ha /S56v9 July 1. 1924. 1,499,732

C. HAUSBERG PLAITING AND BRAIDING MACHINE Filed Sent. 9, 1922 4 Sheets-Sheet 2 July 1, 1924. l.499,732

' c. HAUSBERG PLAITING AND BRAIDING MACHINE Filed Sent. 9, 1 22 4 Sheets-Shegt Patented July 1, 1924..

UWH'ED STATES 1,499,732 earner orat on-:5

CAB/L HAUSBERG, F BRUGG, SWITZERLAND, ASSIGNGR 0F ONE-HALF TO FERRUM GIESSEREI & MASCHINENFABRIK, A. G., OF RAPPERSWIL, SWITZERLAND. T

PLAITING AND BRAIDING MACHINE.

Application filed September 9, 1922. Serial No. 587,213.

rnfiui of Fig. 2 and Fig.4 a. Sectional i To all whom it may concern: I.

Be it known that I, CARL HAUSBERG, a citizen of. the Swiss Confederation, residing at Brugg, Switzerland, have invented certain new and useful Improvements in Plaiting and Braiding Machines (for which an application for patent has been filed in Gel many on the 14th September, 1921, and 3rd April, 1922), of which the following is a specification.

The present invention has reference to improvements in plaiting and braiding ma' chines for making imitation pillow or bone lace, fiat braid, cord, and like work.

In known machines of this-character auxiliary mechanism has been used, operated from the jacquard unit, for controlling the rotary displacement of the horn gears or horned drivers, which support and guide the bobbin carriers or racers in their serpentine course, by the continuously revolving driving wheels. This auxiliary mechanism generally includes spring-influenced coupling and locking members, which means that during the coupling operation the pressure of these springs has to be overcome, which has been found to seriously interfere with the proper operation of the parts. Coupling and uncoupling in the prior art takes place only on the horned drivers having completed a half revolution. Since in these prior machines fractional revolutions of the horned drivers are unobtainable, imitation pillow lace of intricate fancy design cannot be turned out by them.

According to my invention I provide parallelly mounted headstocks, each with a oinion and a horned driving disc, upon which latter are travelingly mounted the racers comprising the bobbin spindles with their bobbins. There are further provided rocker members and trip members, some of which latterare operable by the jacquard mecha nism, and by eoaction between these trips and the rockers the horned drivers are brought into coupling or uncoupling rela tion with the driving pinions as the case may be.

My invention will best be understood when described in connection with the accompanying drawings, in which Fig. 1 is a plan view of a preferred form of the machine, partly broken away to expose underlying parts; Fig. 2 is a front view, partly in section; Fig. 3 is section on line bobbin spindles 8.

line IVIV of Fig. 2; Figs. 5 to 8 show'in more or less diagrammatical manner various operative positions of the essential parts embodying my invention; Fig.9 is a longitudinal section, partly in elevation," of a somewhat modified construction, of which 3? showsapartial side elevation. Fig, 11 is a section'on line XL-XI of FigQlO; Fig. 12 a section on line XIIXII of Fig. 10, and the Figures 13 to 17 illustrate diagrammatically the mode of operation.

In the first form of construction according to Figs. 1 to 8, the reference number 1 denotes the bed plate and the number 2 the top plate in which the reduced ends of the pillars 8 are mounted. On the upper ex tremities, of these pillars are loosely mounted the carrier supporting and driving discs or hornedgears'h (which throughout the specification and claims I shall shortly refer ,to as drivers) and they are held inposi tion by nuts 3 screwing onto the end threads of the pillar reductions. Each driver 5 operates in a depression'6 in the top plate 2 and is circumferentially providjed with a series of recesses 7, forinstance four as shown,-for guidingly receiving the Each driver 5 is rigidly mounted on a sleeve 9 which freely surrounds the pillar 3 and to the lo-wer'end of which is rigidly secured a ratchet disc 10 provided with peripheral teeth 11 facing in a direction opposite to the driving face of the driver recesses 7. Diametrically opposed pawls 12 fulcrumed in the support bridge 14 about the axes of shafts 13 are adapted to cooperate with these'teeth 11 for The shafts 13 freely coupling purposes. extend through the bridge member 14 and the pinion 15, which latter freelyv rotates on the pillar, a sleeve 16 rigidly connecting the pinion with the bridge 14. The several pinions form a train and the first pinion is driven from a main drive, as well known in the art. To the lower extremity of each shaft 13 is fixed a bifurcate rocker member17. From the plate 1 rise fixed wiper or trip posts 18 presenting an arcuate contact face for coaction with the rockers.

17. Rocking segments 19 fixed to the upper extremities of the shafts 20 also extend into the path of the revolving rockers 17 ,and .the lower end 21 of each shaft 20 is connected in suitable manner to the I jacquard mechashown in Fig. 1.

nism, which latter is not shown here as being well known.

On the under-face of each driver 5 are mounted four lugs 22 corresponding to the number of recesses 7, and a tiltable stop 23, mounted on the underside of plate 2 and influenced by a spring 24, normally extends into the path of these lugs (Fig. 1). After each rotatary forward step of the driver 5 10 a lug 22 contacts with the stop 23, which arrests the driver 5. In this position certain recesses 7 of the several drivers 5 registeringly face certain recesses of the next adjacent drivers 5, so that the bobbin-carrying racers of one driver may travel over into the domain of the respectively adjacent driver, The bobbin spindle 8 having entered in between two registering recesses the racer is taken along by the rising tooth edge of the next first moving driver. On coupling of the driving discs with their driving wheels 15 the stops 23 are tilted o'utw ar-dly against the pressure of their springs, but they return at once into their normal position (Fig. 1) as soon as the lugs 22 have passed by.

7 Upon a shaft 20 being lifted by the jacquard mechanism the segment lever 19 is likewise lifted into the path of the rockers (broken line position in Fig. 2), with the result that now the inner arm of-the advancing rocker will wipingly contact with the segment 19 causing it and the shaft 13 to swing around so that the pawls 12 are moved into engagement with the toothed disc 10, on the latter now rotating the driver like wisewill rotate and take along the bobbin spindles within its domain. After the driver has effected approximately a quarter revolution the outer arm of rocker 17 wipingly 'contacts with the trip nember 18 cans ing the rocker to swing inwardly, which movement liftsthe pawl 12 out of engage mam with the disc 10, when the driver willv be arrested. To safeguard the changingover of the racers from one driver to the next one it is essential that the recesses 7 of each two coac'ting drivers always face each other in perfect register.

When one of the rockers 17 contacts with the trip 18, the other oppositely mounted rocker contacts with the segment- 19, If the latter has beenlifted by the jacquard mechanisin into its highest relative position it will be rocked back again causing the pawl 12 theposit-ion in which the pawls have been turned through an angle of approximately relative to the position of Fig. 3. The lower rocker of the right headstock is rocked by the respective rocker contacting with the corresponding segment lever, and on further rotation the pawl will drop in and take the driver along. In Fig. 6 is shown the position of the bobbin spindle-s 8 guidingly supported in the raceways of the drivers.

Fig. 7 shows another headstock pair, in which the rockers are rotated relative to the position shown in Fig. 4c to the extent of somewhat more than a one-half revolution of the driving wheels. The lower rocker of the left headstock lies approximately halfway between the shaft 20 and the trip 18. Fig.8 shows the position of the rockers advanced another 45 degrees relative to the position shown in Fig. 7. The rockers by contact with their trips 18 rotate the shafts 13, cansing the pawls 12 to move out of engagement with the wheels 10, which halts the driver discs.

If the machine is to be used for twoplait ware, where for each driver disc only two racers are provided, the jacquard mechanism is arrested and the shafts 20 with their segments 19 are lifted into their high position, with the result that now continuous alternate coupling and uncoupling of the pawls 12 takes place. In this instance the drivers for each complete rotation of the driving wheels execute twice a quarter turn; for example, the left driver is rotated through a quarter turn, then the right driver the same distance, then again the left driver, and so on, the stepwise rotary advancements being due to the successive coupling and uncoupling of the drivers and the driving wheels.

After the shaft 13 with the pawl 12 of the 1 left driving wheel has made a quarter turn the drivers to the extent of'a quarter of their raceway, and the racers of the right unit will likewise be advanced a corresponding distance, as soon as their driver is rotated.

If the jacquard mechanism is coupled in it is possible to interrupt the coupling operations between driving wheel and driver at any time in accordance with the requirements of the pattern, and the racers can at will be displaced by rotating the drivers, or, for instance, four racers may be used on each driver for making twisted cord, in which instance the coupling and uncoupling of the drivers takes place once or twice, as desired, for each complete revolution of the driving wheels.

In the constructional modification illustrated in Figs. 9'to 17, the pillars 27 are mounted in the bed plate 25 and the top plate 26; 28 are the horneddriving discs, 29 the sleeves loosely surrounding the pillars and supporting the drivers 28; the discs 30 are provided with teeth 31 with which cooperate the pawls 32; 33 are the shafts passing through the drums 34 to which shafts are fixed the pawls 32; 35 are the driving wheels rigidly secured to the drum 34:. To the lower extremity of each shaft 33 is fixed a rocker member 36 or 37 respectively, and 38 denotes ,the trip members which extend upwardly through the bed plate and are in operative connection with the jacquard unit. 39 are the segmental levers, fixed on shafts 40 and adapted to cooperate with the rockers. These latter are of different height, so that the rockers 36 extend to a lower plane than do the rockers 37 (Fig. 9). The shafts 40 with their segments 39 are likewise operated from the jacquard unit and can be lifted by it to two different levels. If the shafts 40 are lifted one step, the lower rockers 36 will contact with the segments 39, and if they are lifted two steps, then bothsets of rockers cooperate alternately with the segments 39 and are thus rocked in either case for coupling the toothed disc 30 with the headstock. The trips 38 are located at a distance of from the shafts 4:0, and the fixed trip members 41 are positionedfrom the shafts 40 at a distance of 180, and from the trips 38 at a distance of 90.

If it is desired that coupling and uncoupling of a driver pair is effected twice on each advance of each pattern card against the needles, that is to say, that each driver .38 makes a quarter turn twice during each complete revolution of the driving wheel, then the trip 38 is lifted by the jacquard mechanism On rotation of the pair of driving wheels, for instance, at first the rocker 36 of the left driving wheel is so moved by contact with the segment 39, which latter was lifted by the jacquard mechanism to the extent of two steps, that coupling takes place, which is uncoupled again upon the rocker striking the trip 38 (Fig. 14) soon thereafter. If by the jacquard mechanism also the trip 38 for the right driving wheel is lifted, the rocker 36 will coact with the segment 39 and thus cause coupling-in of the corresponding driver. By contacting with the trip 38 the parts will be uncoupled again. Simultaneously the rocker 36 of the left wheel will again couple-in the correspond ing driver by contact with the respective segment 39 and uncouples it again by ensuing contact with the trip 38. At the right the driver is coupled-in by the rocker 37 contacting with the segment 39, and it is uncoupled again by contact with trip 38.

If the bobbin driver on advance of a pattern card during each complete revolution of the driving wheel is to make two halfturns, it is necessary to lift the trip segment 39 by means of the shaft 40 into its highest (two step) position. On rotation of the driving wheel the rockers 36 by contact with segment 39 are rocked for coupling-in and they are uncoupled again after the completed half-turn by encountering the fixed trip member 41. rocker 37 contacts with the segment 39, whereby again the driver is coupled-in, and is in turn uncoupled again after a completed half-turn by the respective fixed trip member L1. The drivers, thus, have executed twice a half-turn without interruption, which represents a complete driver revolution. The trip posts 38, in this instance, are not lifted and thus remain inactive, which is indicated by dotted outlines in Fig. 15. The adjacent drivers go through the same described operative movements.

If it is desired that the driving wheels for each complete revolution couple only once for a quarter-turn of the drivers, then the shaft 4.0 is lifted only one step, so that the rockers 37 are not called into action. Uncoupling is obtained by the rockers 36 contacting with the trip posts 38 (Fig. 16).

Lastly, if the drivers for each complete revolution of the driving wheels are coupledin only once for a half-turn, then the shaft 40 with the segment 39 is lifted one step, whilst the trip post 38 is not displaced. The bobbin drivers in this instance are un coupled after a turn of 180 by the rockers 36 contacting with the trip members e1.

,The racers of each two adjacent drivers are taken along by the ascending teeth of the first moving driver. By reason ofthe incline ahead of each tooth the racers of the one driver are properly led over into the registering recess ahead of the corresponding tooth of the coacting next adjacent driver.

What I claim is 1. In a machine of the character set forth including a jacquard mechanism, in combination with a series of interdependently operable driving units including for each unit a continuously rotatable drive shaft, driving discs presenting peripheral recesses and normally loose on said shafts, racers positively guided in said discs for transfer from one disc to the next adjacent disc, coupling means interposed between said driving units and said discs, and means operable from the jacquard mechanism for selectively actuating said coupling means, said coupling means comprising for each unit a bridge member loose on said driving shaft, a ratchet wheel in rigid connection withsaid driving disc, rock shafts rotatably journaled in said bridge member, and pawls fixed to said shafts and adapted for cooperation with said ratchet wheel, said bridge member adapted to partake of the rotary movement of said driving shaft, and means operable from the jacquard mechanism for controlling the rocking movement of said rock shafts'for respectively coupling and uncoupling said Simultaneously the other bridge member and said ratchet wheel at predeterminable periods.

2. In a machine of the character set forth including a jacquard mechanism, in combination with a series of driving units including for each unit a continuously rotatable drive shaft, driving discs presenting peripheral recesses and normally loose on said shafts, racers positively guided in said discs for transfer from one disc to the next adj a cent disc, coupling means interposed between said driving units and said discs, and means operable from the jacquard mechanism for selectively actuating said coupling means, said coupling means comprising for each unit a bridge member loose on said drive shaft, a ratchet wheel in rigid connection with said driving disc, rock shafts rotatably journaled in said bridge member, and pawls fixed to said shafts and adapted for cooperation with said ratchet Wheel, said bridge member adapted to partake of the rotary movement of said drive shaft, and means operable from the jacquard mechanism for controlling the rocking movement of said rocl: shafts for respectively coupling and uncoupling said bridge member and said ratchet wheel at predeterminable periods,a rain of gears interconnecting the several said driving units and the said pawl-carrying rock shafts in each unit freely passing up through the respective gear for rotation therewith.

8. In a machine accordingtocclaim 2, in combination with the pawl-carrying rock shafts, rockers fixed on said rock shafts, fixed trip members adapted to cooperate with said rockers, and movable trip members controlled from said jacquard mechanism and adapted to be selectively brought intoand out of cooperation Withsaid rockers for respectively reversing the preceding fixed-trip induced movement of the rockers.

4. In a machine of the character set forth in combination with a series of interdependently operable driving discs presenting peripheral recesses, stop means for assuring perfect registry of the respectively coacting recesses in each two adjacent driving discs, comprising for each disc a plurality of lugs rigidly extending from the'disc in spaced relation to the disc recesses, and a yieldable stop member mounted on a fixed machine part and comprising a rockable finger normally extending into the domain of said disc lugs, and resilient means tending to retain said finger in the normal relative position but allowing it to momentarily rockingly recede in cooperation with each of said disc lugs.

5. In a machine according to claim 2, in combination with the pawl-carrying rock shafts in each driving unit, rockers fixed on said rocks shafts, a fixed trip member adapted for cooperation with said rockers, an axially movable trip post operable from the jacquard. mechanism, and an axially shiftable and roclrabie trip segment also operable from the jacquard mechanism, one of said rockers being of less height than the respective other rocker, and both said movable trips adapted to be selectively moved into or out of cooperation with one or both of. said rockers.

In testimony whereof I affix my signature in presence of two witnesses.

CARL HAUSBERG.

Witnesses:

AUGUST Runes, F. HEIM. 

